Pinion-shaft housing



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PINION SHFT HOUSING. `APPLICATION FILED APR. 20, 1921.

Patented June 2o, 1922.`

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Pinion-snare HoUsrNG.

Specification of Letters Patent. Patented June 20, 1922.

`Application filed April 20, 1'921. Serial No. 462,879.

T 0 all fur/10m it Imr/ry cwi-cem: I

lBe it known that l, Vieron XV. Prion, a citizen of the United States, and a resident of the city of New York, Kew Gardens,-

borough of Queens, in the county of Queens and State of New York, have invented a new and Improved Pinion-Shaft Housing, of which the following is a full, clear, and exact description;

The present invention relates to new and useful improvements in pinion shaft housings for motor vehicle drives, and it has for its primary object to provide a new and improved construction which Will permit of the use of magnalite, lynnite and other aluminum alloys in this connection with the result that the various advantages gained from using light material for this purpose will be attained without loss of strength and durability necessary to these parts of a motor vehicle driving mechanism. Heretofore axle housings, pinion housings, and the like, have been formed from hard metal which has its disadvantages, as, for example, Yexcess weight, liability to fracture through its 'brittleness, together with many difficulties in the working of said metal to form these several parts. Aluminum alloys are known to he relatively light but under ordinary conditions are not adaptable for this use for the reason that they are not possessed 'of suiiicient strength to withstand the stresses and strains to which this portion of the driv ing mechanism of a motor vehicle is subjected under ordinary driving conditions. It is, therefore, another object of the invention to so constructJ this portion of the driving mechanism of a motor vehicle that the light materials above mentioned may be used to rovide the rear axle, differential, and pinion 4shaft housings, thus gaining the many advantages yabove mentioned by thc use of thesematerials.

Reference is( had to the accompanying drawings in whichlthefigure is a ongitu dinal sectional view of the rear end of a propeller shaft'housing, a complete pinion shaft housing and a portion of the differential mechanism housing. l Referring more particularly to the draw in s, the reference character 5 designates the.

di erential section of the rear axle housing,

and said rear axle housing 1s provided at this point with a forward tubular extension 6 formed 'with a flange, lugs., or the like 7,

at'its forward end, the said'flange or lugs being provided with internally screwthreaded openings 8. The reference character 9 designates the rear end of the propeller shaft housing and said rear end is formed with an annular flange 10 provided with a plurality of openings 11. Extending rearwardly of the propeller shaft housing 9 is a propeller shaft 12, and mounted in the pinion shaft housing 6 is a pinion shaft 413, the rear end of which carries a pinion 14. The forward end l15 of the pinion shaft 13 -is o eratively connected with the rear end of t e propeller shaft 12 by means of a4 sleeve or the like 16. The reference character 17 designates a sleeve formed of steel or other suitable hard material andsaid sleeve is of an external diameter substantially equal to the internal diameter of the pinion shaft housing 6 in order that said sleeve may have a'snug fit therein. This sleeve is provided upon its forward end with a flange 18 and said flange' 18 is adapted for engagement with the flange or lugs 7 of the pinion shaft housing 6 as shown, said-flange 18 having a plurality of openings sleeve 17 is crimped or rolled to forml inwardly-projecting beads or the like 20 and 21.

The reference character 22 designates a roller'bearing placed in the rear end of the sleeve 17 and said roller bearing is adapted to receive the lateral thrusts of Vthe vpinion shaft during its operation. This roller bearing 22 is prevented from moving forwardly of the sleeve by reason of the inwardly positioned bead 20 heretofore mentioned.

To provide for the longitudinal, thrust of the pinion shaft 1P a bearing 23 of the ball type is employed',A sertedin the forward en d of the sleeve 17 19. This internal and said bearing is in.

and is maintained against movement rearwardly of the sleeve 17 by the inwardly projeeting bead 21.

After the bearlngs 22 and 23 and pinion shaft 13 have been positioned, a plate 25 is interposed between the flange 18 of the sleeve 17 and the ange 10 of the propeller shaft housing 9 and said plate serves to prevent forward movement Aof the bearing 23 relatively to the sleeve 17. In addition to this plate 25, he bearing 23 is maintained againstforward movement'by means of a nut 26 engaging a screw-threaded portion 27 of the pinion shaft 13,-said nut engaging the inner race of the bearing'. ln eddition to the crimped beads 20 and 21 forniing ineens for positioning and reteiningthe bearings 22 end 23 in position in the sleeve 1'?, they serve to strengthen the sleeve 17, in order that the saine maybe more capable of withstanding both longitudinal and lateral thrusts. v

The device is esseinbled in the following manner:

T he bearing 22 having been inserted in the sleeve 17, the pinion sha-'ft is next inserted after which the ybearing; 23 iswinserted and the entire device, li. e., the `sleeve 17,

inion shaft 13 and the beerino's 22 sind 25 ere positioned in the pinion shaft housing 6.

After this has' been done, the plate 25 is next positioned, after which e, plurality of bolts are employed to secure the rear enol or' the propeller shaft housing, the plete 25 and the sleeve 17, to the pinion shaft housing` 6, the bolts 30 passing through the r'lnnge l() oi the propeller shaft housing, the plete the ilengel of the sleeve l?, and theilenge or lugs 7 or ythey pinion shaft housing,r 6.

F rom vthe foregoingitl Will be apparent that the present ini/*entren provides e strueture hy ineens of 'which relatively light nu terral, such asniegnalite, lynnite, end other aluminum and niegnesiurn alloys which ordinarily Woiild fnot serve purpose of, rear axle, diferentiel. and pinion shaft housings, ma'yjiefxnnployed since by reason of the insertedsleeve, ysniiioient strength and rigidity is hed, which strength and rigidity is sufficient to overcome the disadvantages in ythis respect of the materiels above mon tioned for use in this connection.

,securing 9,. lin eornbinetion with e propeller shaft' housing forni' a pinion shalt housingfforined of u rela tively `sort metal, e lining for seid pinion shaft housing, seid lining,` being formed of relatively herd .niet-ariel, and means for scouring the propeller shalt housing, the

pinion sliet'lionsing,"nnd lining for the pinion shafthousingtogether to provide e uni tary structure. i

3. ln -combinetion 'with e propeller shaft housingr formed of e relatively herd metal,

e pinion shaft housing formed of, e reletively soft metal, e lining for seid pinion shziit housing, seid lining being formed of i'eleiti y u the propeller shaft honsinfr, the pinion sliei't housing, and lining for the pinion shaft housing together to provide e unitary structure, whereby 'the lateral and longitudinal thrusts of thelining will be transmitted to the propeller shaft housing.

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